Unit 5 Working the Land Using Language 课件-2022-2023学年高中英语人教版（2019）选择性必修第一册

Chemical Versus Organic Farming Unit 5 Working the Land Reading for writing Learning objectives In this class we will: Understand the meanings of chemical farming and organic farming. Know the advantages and disadvantages of them. Express opinions on them, and write an argumentative essay . Reading PART 01 3 。 chemical [ˈkemɪkl] 化学的 bacteria [bækˈtɪəriə] 细菌 pest [pest] 害虫 Lead in Learn some new words. 4 production 生产；制造 nutrition [nuˈtrɪʃn] 营养 mineral [ˈmɪnərəl] 矿物质 Pre-reading 1.What is the farmer doing in the picture? 2.What is the farmer wearing? Why? The farmer is spraying chemical pesticides on the crops. The farmer is wearing a mask and hat. Because it may harm people’s health. Look at the photo and discuss. v.喷洒 What is chemical farming? What is organic farming? Reading Organic farming is simply farming ________________ Chemical farming is farming with _________ , especially ___________________ and _________________. while chemicals chemical pesticides artificial fertilizers without chemicals . Para.1 Para.3 Activity 1: Read para.1 and para.3, and then answer the following questions. Reading D. The problems with chemical farming B. Why man-made chemicals are still used in C. Organic methods for producing rich soil A. What organic farming is D A C B bacteria and insects prohibited damage they use grow too fast nutrition natural waste from animals change the kind of crop every year different depths demand for food around the world Activity 2: Mtach the main ideas ,and then complete the sentences. Understand the structure of the text. Title The _______ and _________ of chemical farming. benefits problems Part 1: (Para 1&2) What organic farming is Part 2: (Para 3) Part 4: (Para 5) Conclusion Part 3: (Para 4) Organic methods for producing rich soil Reading Writing PART 02 10 What’s the author’s attitude towards chemical farming and organic farming? A.Negative